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Tilly shaw ets quick wins breakfast 21 nov 2017

2.
1 - Light and Energy in Buildings
§ In 2010 buildings accounted
for 32% of total global final
energy use.
§ This may double or triple by
2050, due to global
demographic trends
§ The building sector has been
shown to provide the
greatest potential for
delivering significant cuts in
emissions at no cost
Sources: 1-IPCC AR5-Working Group 3 – Ch9; 2-UNEP Sustainable buildings and climate initiative.
Photo courtesy of aturkus / www.flickr.com under creative commons license.

3.
2 - Where is my energy going?
I think we’re fairly
energy-efficient,
but how can I be
sure?
ü Record your energy use, in kWh/year and £/year
ü Find the floor area for each type of space (for example server
room, office space)
ü Establish true operating hours and other potential “energy
drivers” for your building
ü Compare kWh/m2 to standard benchmarks, previous years, or
similar buildings
...set up your energy baseline
& compare to benchmarks

7.
4 - HVAC: what could you save?
A review of commercial building retrofits found typical savings of 25-50%
HVAC consumption, through upgrading equipment and controls (without
changing the building envelope).
Heating ventilation and cooling can be complex but there are some simple
things everyone can ask about:
1. Is the plantroom equipment in “manual” or “in hand” mode?
2. Does heating and cooling occur at the same time in the same space?
3. Is the whole system adjusted to cope with a small problem area e.g.
cold spots near a large window or doorway?
If your answer to any of the above is “yes” then a review of controls
and/or zoning is likely to be cost-effective.